That 'permission denied' error is weird. can you read that file with something other than virt-install? as root and as another user? try file /media/usb/CentOS-7-x86_64-DVD-1503-01.iso
that's not necessary to post it there. part of the purpose of coming to chat is to avoid spamming the post with a whole lot of trial and error garbage.
@cas The problem is that the speed of this chat room will accellerate when everyone returns, so that all this will be lost forever, and no one will be able to find this trial and error. I have a good habit of deleting edits from posts after they have been answered. As it stands, the edits allow a new visitor to quickly see all the trial and error in one place.
FYI, i downloaded a centos iso and ran an almost identical command on my system. it has booted the kernel and is now at a menu asking me what to do next.
$ sudo virt-install --name=public-centos7 --disk path=/home/cas/vm/some.img,size=10 --graphics none --vcpus=2 --memory=2048 --location /home/cas/torrents/Software/Linux/CentOS-7-x86_64-Minimal-1503-01/CentOS-7-x86_64-Minimal-1503-01.iso --network bridge=br0 --os-type=linux --os-variant=rhel7.0 --extra-args console=ttyS0 /usr/share/virt-manager/virtinst/osdict.py:26: PyGIWarning: Libosinfo was imported without specifying a version first. Use gi.require_version('Libosinfo', '1.0') before import to ensure that the right version gets loaded.
Starting installer, one moment... anaconda 19.31.123-1 for CentOS 7 started. * installation log files are stored in /tmp during the installation * shell is available on TTY2 * when reporting a bug add logs from /tmp as separate text/plain attachments 01:14:33 Not asking for VNC because we don't have a network ================================================================================ ================================================================================ Installation
the only really significant changes on my command line are: --extra-args console=ttyS0 so that virt-install connects to the console during the install (essential); and --location /.../centos.iso worked without a problem.
there seems to be a weird problem on you system where virt-install can't seem to read your .ISO file from the USB stick, possibly because it's NTFS. Maybe try copying the file to somewhere else first.
@cas That is what I mean. I need to get an iso file in a format that centos can read. Windows seems to only write to FAT and ntfs. Or burn to an exploded dvd, which is a different OP that has not been answered. I have the iso in my windows devbox and on the ntfs usb, and then exploded onto a dvd. If the usb option is not working, perhaps i just download a clean copy from the net to the linux server and call it a day while i wait for it to download.
there's no evidence to suggest that the .iso image you have is faulty. all you're getting is odd permissions errors. that does not indicate corruption of the .iso image
ok, you've got a fairly typical libvirt directory structure. try copying the .iso to /varlib/libvirt/images and modifying your command line to have --location /var/lib/libvirt/images/CentOS-7-x86_64-DVD-1503-01.iso.
btw, my current theory re: the permissions errors is that virt-install is interpreting any error when trying to access the .ISO as a permissions error and falsely reporting it as such. It may just be that it is trying to open the .iso file in a way that isn't compatible with the NTFS file system.
which is why i'm suggesting that copying it to a linux fs may help.
it's worth trying, anyway :)
because there's really no difference between the virt-install command you ran and the one i ran exept that my .iso was on a linux fs. and the --extra-args option, but that solves a completely separate issue (connecting to the console)
did you use --extra-args console=ttyS0 ? that really is essential, without it you'll see no output and qemu will wait forever for keyboard input it's never going to get.
[root@localhost images]# virt-install --name=public-centos7 --disk path=/home/publicvm/some.img,size=10 --graphics none --vcpus=2 --memory=2048 --location /var/lib/libvirt/images/CentOS-7-x86_64-DVD-1503-01.iso --network bridge=br0 --os-type=linux --os-variant=rhel7.0 WARNING No 'console' seen in --extra-args, a 'console=ttyS0' kernel argument is likely required to see text install output from the guest.
I'm using Linux Mint Debian Edition (Up. 8)
when tryng to start a virtual machine from libvirt (either from commandline or using virt-manager to local qemu-kvm)
I get this error when I use an image that is not loaded in the default datastore:
if I copy the same image (in this example an .iso fil...
My host OS is Ubuntu Server 11.04 (natty)
After following the instructions detailed by Ubuntu's help, I created one KVM image using
sudo ubuntu-vm-builder kvm hardy --libvirt qemu:///system
The image file was created as
-rw-r--r-- 1 root root 438M 2011-06-17 14:39 ubuntu-kvm/tmpK9hbU5.qcow...
the latter suggests that selinux is preventing qemu from accessing CD images outside of regiseted libvirt storage pools (like /var/lib/libvirt/images).
another page i found with google suggested that (at least back in 2013) virt-install couldn't cross filesystems - i.e. the disk image and the cd-image had to be on the same filesystem. that sounds a bit bogus to me, but it's possible.
s/it's possible/it's not impossible/
the problem on mint suggests that the qemu user (probably libvirt-qemu - that's what it is on debian based distros anyway) needs rx access to not only the .iso image but to all parent directories in the path to the .iso.
@cas I copied the commands into an instruction sheet in a separate document so that I can reproduce this tomorrow. It is late where i am now. I am going to log off soon. If you want to write up an answer, I would be happy to mark it as accepted and +1 when I return. In the meantime, I will delete the EDITS in my OP as you requested.
> There are concerns in the R community over a certain member of the Comprehensive R Archive Network who creates a similar atmosphere (without the sexism, but overall equally hostile).
@StrongBad pretty much any distro with a "server edition" should be fine. So will any other but those with server editions come with some things preinstalled.
@FaheemMitha I'm sure it isn't by sysadmins. Someone who is asking for a dedicated LAMP distro and wants a remote interface (as opposed to ssh) is clearly not a sysadmin and probably won't mind.
@StrongBad I have no idea. Not my area of expertise.
@Ell Typically something like init 1. The lowest level recovery mode is usually text. X is only started at higher levels. But your grub should have that.
@FaheemMitha Also, I was chatting with one of the SF mods the other day and, being a professional sysadmin, he hated all cpanel and such managment GUIs but admitted that webmin is not as bad as the others.
@cas I am using the console to install the centos vm downstream of what you helped me with yesterday. I have questions about setting up some of the features such as networking. are you willing to discuss it with me?
@FaheemMitha Sure it is. It's a graphical user interface. Everything that isn't simple ASCII text on separate lines is a form of GUI, no matter how primitive.
@FaheemMitha Yes. And your terminal is running in a GUI frontend. So's your editor and web browser and clipboard and calendar and clock and all the pretty buttons you click on to launch stuff etc, etc.
Download Abiword from Ubuntu Software Center or you can install it by typing following command in terminal:
sudo apt-get install abiword
Then perform the conversion:
abiword --to=doc example.pdf
I am using libreoffice under CentOS 6. I can convert ODT files to PDF with:
libreoffice --headless --convert-to pdf *.odt
but the problem is that it only works when no document is open in libreoffice.
When I specify --env:UserInstallation=file:///path/to/some/directory
as suggested in one of th...
> For x86 and AMD64 processors, the in-kernel framebuffer driver conflicts with the binary driver provided by nVidia. When compiling the kernel for these CPUs, completely remove support for the in-kernel driver as shown:
> A framebuffer alternative is uvesafb, which can be installed parallel to x11-drivers/nvidia-drivers.
For (U)EFI systems, uvesafb will not work. Be warned that enabling efifb support in kernel (CONFIG_FB_EFI=y) causes intermittent problems with the initialization of the nvidia drivers. There is no known alternative framebuffer for (U)EFI systems.
@FaheemMitha I'm just saying that you seem to be forcing yourself to go through a whole lot of hoops just for something you would have finished 10 minutes ago with 3 clicks of the GUI.
faheem@orwell:~/personal/business/smyt$ unoconv -f docx razia2.pdf unoconv: UnoException during export phase: Unable to store document to file:///home/faheem/personal/business/smyt/razia2.docx (ErrCode 3088)
Properties: ((com.sun.star.beans.PropertyValue){ Name = (string)"OutputStream", Handle = (long)0x0, Value = (any){ (com.sun.star.uno.XInterface)0x1c69b28{, supportedInterfaces={com.sun.star.lang.XTypeProvider,com.sun.star.io.XOutputStream}} }, State = (com.sun.star.beans.PropertyState)DIRECT_VALUE }, (com.sun.star.beans.PropertyValue){ Name = (string)"Overwrite", Handle = (long)0x0, Va…
@terdon Thanks to @cas, I was able to just copy an iso file onto the server and then call the iso file from the virt-install command in the new OP that I posted several comments up. Thank you for asking.
@terdon, i'm no expert on centos or the centos installer. i would expect (simple) networking to "just work"...qemu gives the VM a bridge to eth0 and the VM just sees it as eth0.
@cas Yes, that is my guess also. But eth0 is disconnected by default. When I use the gui to install the no-gui host OS, turning on eth0 is as easy as sliding a switch from left to right. Then I go into a config file and re-write it with my own settings, but I can do that using a keyboard attached to the computer. With the guest, I do not know how to connect to change the config file, etc in the guest os
You're actually connected to the VM's console when you see that installer menu. if you can get a root shell there, you should be able to configure networking in whatever way you'd normally do it. Once the installer has finished running, you can re-connect to the console of a running VM with virsh console public-centos7. run virsh help console for details.
you might also want to examine the output of virsh dumpxml public-centos7 to see if there's a network interface defined for that VM.
otherwise, probably option 2 or 3...pick an unused IP on the same subnet as the host. here's where my lack of knowledge of centos installer is a problem, i don't know why they distinguish between "IPv4 Netmask" and "IPv4 gateway" or exactly what those terms mean to the centos devs who made that menu.
then pick an IP address on the same subnet as the host, and set the gateway address to be the ip of the router.
imo, it would be worthwhile figuring out how to configure libvirt to run dnsmasq to provide DHCP to the VMs. that way you won't have to repeat this process for every VM you make. you can configure dnsmasq to offer a limited range of IP addresses (e.g. 192.168.1.100 to 192.168.1.200) rather than the entire /24. for example.
or just run a dhcp server on your cable modem. they usually have that capability as an option.
My host OS is Ubuntu Server 11.04 (natty)
After following the instructions detailed by Ubuntu's help, I created one KVM image using
sudo ubuntu-vm-builder kvm hardy --libvirt qemu:///system
The image file was created as
-rw-r--r-- 1 root root 438M 2011-06-17 14:39 ubuntu-kvm/tmpK9hbU5.qcow...
Is there any free software available on Ubuntu that can convert a pdf file to a .doc file?
Download Abiword from Ubuntu Software Center or you can install it by typing following command in terminal:
sudo apt-get install abiword
Then perform the conversion:
abiword --to=doc example.pdf
I am using libreoffice under CentOS 6. I can convert ODT files to PDF with:
libreoffice --headless --convert-to pdf *.odt
but the problem is that it only works when no document is open in libreoffice.
When I specify --env:UserInstallation=file:///path/to/some/directory
as suggested in one of th...
